Digital Amplifier Board

We like listening to songs. In this tutorial, we will see how to construct ourselves an excellent Bluetooth speaker. What we all want is an old 50W speaker, the module that is TPA3116 NE5532 and a Bluetooth device to perform the music. I'll use my smartphone to perform with my music.

This is going to be a quick, easy and very low-cost tutorial. I've got my speaker situation. The amplifier module is from eBay. I have got the receiver module integrated. All we want are some cables, a 12V battery or greater, a few connectors, push buttons along with charging.

I found that they simply recommend w constant and did a little research on the Test Instruments itself, but I noticed that this was at 8 ohms impedance. The speaker I built applications normally one interface running a 120 watt 4 ohm 3-way home theater speaker, using a second occasionally plugged in (if I ground out this or something when not being used?). Their outputs vary with different impedances I don't know whether 4 ohms is your best as ban good recommends eight but can't find this anywhere.

There was also some noteworthy distortion in the bass when in a high gain mode which I could only think of the input signal that could cause this (or once again the impedance of the speaker). It now runs a four cell li-ion (~16.4v) however I have been planning to upgrade to 5 or 6 cell (20.5~24.6) (is that worth it). The TPA3116 NE5532 is a sound amplifier. You could buy the chip and make your circuit. But this module has integrated a module the elements in output connectors the amplifying process and controller switches. All we will need to to is join an 8-ohm 50W speaker to every output provide it with 12V into 36A and connect a Bluetooth device to it. Be careful; there are equal models bear this in mind when buying or with just 20W. I've purchased mine from eBay with only 9 dollars,

In the layout above you can see that the board has five control buttons. You might use these to alter the track or control the quantity. There is a DIP 2 switches button. Combining the up/down position of each switch we could obtain four distinct filters to the output. From the design above you can see each mix and the gain that is implemented in every case.

I'll use two 7.4 Li-Po batteries connected in series to get around 15 volts. Il drills the speaker situation and adds ane connector that is external. To this connector, I'll connect a DC step up. In this way, I'll apply a 12V input, and I am going to have the ability to charge the 15V batteries. Using the potentiometer, I will place the module output voltage to 15V. To turn the module on and off I have used a switch. Connect the TDA module output to the circuit, and the speaker is prepared.

Building the case

 I will use a speaker. The speakers. Mine has 3, low, high and searchable. For the med, it is Recommended to utilize a capacitor. I'll create a few holes in The speaker case and match the amplifier module indoors. I'll also Make some holes. Solder both, all the cables Batteries indoors and the output of this amplifier to the speakers. Close The speaker part. Insert the switch It to turn on and off. The 12V plug will also be on that the Without even opening it the batteries may charge.

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Created on Sep 5th 2017 07:14. Viewed 624 times.

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